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mirror of https://github.com/moparisthebest/curl synced 2024-12-21 23:58:49 -05:00

Georg Huettenegger's curl_formadd fixes

This commit is contained in:
Daniel Stenberg 2001-10-03 07:54:42 +00:00
parent ac70a43452
commit 66087bdac6

View File

@ -80,6 +80,23 @@ Content-Disposition: attachment; filename="inet_ntoa_r.h"
Content-Type: text/plain
...
Content-Disposition: form-data; name="ARRAY: FILE1_+_FILE2_+_FILE3"
Content-Type: multipart/mixed, boundary=curlirkYPmPwu6FrJ1vJ1u1BmtIufh1
...
Content-Disposition: attachment; filename="inet_ntoa_r.h"
Content-Type: text/plain
...
Content-Disposition: attachment; filename="Makefile.b32.resp"
Content-Type: text/plain
...
Content-Disposition: attachment; filename="inet_ntoa_r.h"
Content-Type: text/plain
...
Content-Disposition: form-data; name="FILECONTENT"
...
For the old FormParse used by curl_formparse use:
gcc -DHAVE_CONFIG_H -I../ -g -D_OLD_FORM_DEBUG -o formdata -I../include formdata.c strequal.c
@ -394,7 +411,7 @@ static struct HttpPost * AddHttpPost (char * name,
if(post) {
memset(post, 0, sizeof(struct HttpPost));
post->name = name;
post->namelength = namelength;
post->namelength = namelength?namelength:(long)strlen(name);
post->contents = value;
post->contentslength = contentslength;
post->contenttype = contenttype;
@ -432,9 +449,9 @@ static struct HttpPost * AddHttpPost (char * name,
* parent_form_info is NULL.
*
***************************************************************************/
static FormInfo * AddFormInfo (char *value,
char *contenttype,
FormInfo *parent_form_info)
static FormInfo * AddFormInfo(char *value,
char *contenttype,
FormInfo *parent_form_info)
{
FormInfo *form_info;
form_info = (FormInfo *)malloc(sizeof(FormInfo));
@ -472,7 +489,7 @@ static FormInfo * AddFormInfo (char *value,
* Returns some valid contenttype for filename.
*
***************************************************************************/
static const char * ContentTypeForFilename (char *filename,
static const char * ContentTypeForFilename (const char *filename,
const char *prevtype)
{
const char *contenttype = NULL;
@ -528,16 +545,21 @@ static const char * ContentTypeForFilename (char *filename,
***************************************************************************/
static int AllocAndCopy (char **buffer, int buffer_length)
{
char *src = *buffer;
int length;
const char *src = *buffer;
int length, add = 0;
if (buffer_length)
length = buffer_length;
else
else {
length = strlen(*buffer);
*buffer = (char*)malloc(length);
add = 1;
}
*buffer = (char*)malloc(length+add);
if (!*buffer)
return 1;
memcpy(*buffer, src, length);
/* if length unknown do null termination */
if (add)
(*buffer)[length] = '\0';
return 0;
}
@ -561,11 +583,11 @@ static int AllocAndCopy (char **buffer, int buffer_length)
*
* Simple name/value pair with copied contents:
* curl_formadd (&post, &last, CURLFORM_COPYNAME, "name",
* CURLFORM_COPYCONTENTS, "value");
* CURLFORM_COPYCONTENTS, "value", CURLFORM_END);
*
* name/value pair where only the content pointer is remembered:
* curl_formadd (&post, &last, CURLFORM_COPYNAME, "name",
* CURLFORM_PTRCONTENTS, ptr, CURLFORM_CONTENTSLENGTH, 10);
* CURLFORM_PTRCONTENTS, ptr, CURLFORM_CONTENTSLENGTH, 10, CURLFORM_END);
* (if CURLFORM_CONTENTSLENGTH is missing strlen () is used)
*
* storing a filename (CONTENTTYPE is optional!):
@ -577,204 +599,299 @@ static int AllocAndCopy (char **buffer, int buffer_length)
* curl_formadd (&post, &last, CURLFORM_COPYNAME, "name",
* CURLFORM_FILE, "filename1", CURLFORM_FILE, "filename2", CURLFORM_END);
*
* Returns 0 on success, 1 if the FormInfo allocation fails, 2 if one
* option is given twice for one Form, 3 if a null pointer was given for
* a char *, 4 if the allocation of a FormInfo struct failed, 5 if an
* unknown option was used, 6 if the some FormInfo is not complete (or
* has an error), 7 if a HttpPost struct cannot be allocated, and 8
* if some allocation for string copying failed.
* Returns:
* FORMADD_OK on success
* FORMADD_MEMORY if the FormInfo allocation fails
* FORMADD_OPTION_TWICE if one option is given twice for one Form
* FORMADD_NULL if a null pointer was given for a char
* FORMADD_MEMORY if the allocation of a FormInfo struct failed
* FORMADD_UNKNOWN_OPTION if an unknown option was used
* FORMADD_INCOMPLETE if the some FormInfo is not complete (or an error)
* FORMADD_MEMORY if a HttpPost struct cannot be allocated
* FORMADD_MEMORY if some allocation for string copying failed.
* FORMADD_ILLEGAL_ARRAY if an illegal option is used in an array
*
***************************************************************************/
typedef enum {
FORMADD_OK, /* first, no error */
FORMADD_MEMORY,
FORMADD_OPTION_TWICE,
FORMADD_NULL,
FORMADD_UNKNOWN_OPTION,
FORMADD_INCOMPLETE,
FORMADD_ILLEGAL_ARRAY,
FORMADD_LAST /* last */
} FORMcode;
static
int FormAdd(struct HttpPost **httppost,
struct HttpPost **last_post,
va_list params)
FORMcode FormAdd(struct HttpPost **httppost,
struct HttpPost **last_post,
va_list params)
{
FormInfo *first_form_info, *current_form_info, *form_info;
int return_value = 0;
FormInfo *first_form, *current_form, *form;
FORMcode return_value = FORMADD_OK;
const char *prevtype = NULL;
struct HttpPost *post = NULL;
CURLformoption next_option;
CURLformoption option;
struct curl_forms *forms = NULL;
int array_index = 0;
first_form_info = (FormInfo *)malloc(sizeof(struct FormInfo));
if(first_form_info) {
memset(first_form_info, 0, sizeof(FormInfo));
current_form_info = first_form_info;
/* This is a state variable, that if TRUE means that we're parsing an
array that we got passed to us. If FALSE we're parsing the input
va_list arguments. */
bool array_state = FALSE;
/*
* We need to allocate the first struct to fill in.
*/
first_form = (FormInfo *)malloc(sizeof(struct FormInfo));
if(first_form) {
memset(first_form, 0, sizeof(FormInfo));
current_form = first_form;
}
else
return 1;
return FORMADD_MEMORY;
/** TODO: first check whether char * is not NULL
TODO: transfer.c
*/
while ( ((next_option = va_arg(params, CURLformoption)) != CURLFORM_END) &&
(return_value == 0) )
{
switch (next_option)
{
case CURLFORM_PTRNAME:
current_form_info->flags |= HTTPPOST_PTRNAME; /* fall through */
case CURLFORM_COPYNAME:
if (current_form_info->name)
return_value = 2;
else {
if (next_option == CURLFORM_PTRNAME)
current_form_info->name = va_arg(params, char *);
else {
char *name = va_arg(params, char *);
if (name)
current_form_info->name = name; /* store for the moment */
else
return_value = 3;
}
/*
* Loop through all the options set.
*/
while (1) {
/* break if we have an error to report */
if (return_value != FORMADD_OK)
break;
/* first see if we have more parts of the array param */
if ( array_state ) {
/* get the upcoming option from the given array */
option = forms[array_index++].option;
if (CURLFORM_END == option) {
/* end of array state */
array_state = FALSE;
continue;
}
else {
/* check that the option is OK in an array */
/* Daniel's note: do we really need to do this? */
if ( (option <= CURLFORM_ARRAY_START) ||
(option >= CURLFORM_ARRAY_END) ) {
return_value = FORMADD_ILLEGAL_ARRAY;
break;
}
}
}
else {
/* This is not array-state, get next option */
option = va_arg(params, CURLformoption);
if (CURLFORM_END == option)
break;
case CURLFORM_NAMELENGTH:
if (current_form_info->namelength)
return_value = 2;
}
switch (option) {
case CURLFORM_ARRAY:
forms = va_arg(params, struct curl_forms *);
if (forms) {
array_state = TRUE;
array_index = 0;
}
else
return_value = FORMADD_NULL;
break;
/*
* Set the Name property.
*/
case CURLFORM_PTRNAME:
current_form->flags |= HTTPPOST_PTRNAME; /* fall through */
case CURLFORM_COPYNAME:
if (current_form->name)
return_value = FORMADD_OPTION_TWICE;
else {
char *name = va_arg(params, char *);
if (name)
current_form->name = name; /* store for the moment */
else
current_form_info->namelength = va_arg(params, long);
break;
case CURLFORM_PTRCONTENTS:
current_form_info->flags |= HTTPPOST_PTRCONTENTS; /* fall through */
case CURLFORM_COPYCONTENTS:
if (current_form_info->value)
return_value = 2;
else {
if (next_option == CURLFORM_PTRCONTENTS)
current_form_info->value = va_arg(params, char *);
else {
char *value = va_arg(params, char *);
if (value)
current_form_info->value = value; /* store for the moment */
else
return_value = 3;
}
return_value = FORMADD_NULL;
}
break;
case CURLFORM_NAMELENGTH:
if (current_form->namelength)
return_value = FORMADD_OPTION_TWICE;
else
current_form->namelength = va_arg(params, long);
break;
/*
* Set the contents property.
*/
case CURLFORM_PTRCONTENTS:
current_form->flags |= HTTPPOST_PTRCONTENTS; /* fall through */
case CURLFORM_COPYCONTENTS:
if (current_form->value)
return_value = FORMADD_OPTION_TWICE;
else {
char *value = va_arg(params, char *);
if (value)
current_form->value = value; /* store for the moment */
else
return_value = FORMADD_NULL;
}
break;
case CURLFORM_CONTENTSLENGTH:
if (current_form->contentslength)
return_value = FORMADD_OPTION_TWICE;
else
current_form->contentslength = va_arg(params, long);
break;
/* Get contents from a given file name */
case CURLFORM_FILECONTENT:
if (current_form->flags != 0)
return_value = FORMADD_OPTION_TWICE;
else {
char *filename = va_arg(params, char *);
if (filename) {
current_form->value = strdup(filename);
current_form->flags |= HTTPPOST_READFILE;
}
break;
case CURLFORM_CONTENTSLENGTH:
if (current_form_info->contentslength)
return_value = 2;
else
current_form_info->contentslength = va_arg(params, long);
break;
case CURLFORM_FILE: {
char *filename = va_arg(params, char *);
if (current_form_info->value) {
if (current_form_info->flags & HTTPPOST_FILENAME) {
if (filename) {
if (!(current_form_info = AddFormInfo (strdup(filename),
NULL, current_form_info)))
return_value = 4;
}
else
return_value = 3;
return_value = FORMADD_NULL;
}
break;
/* We upload a file */
case CURLFORM_FILE:
{
const char *filename = NULL;
if (array_state)
filename = forms[array_index].value;
else
filename = va_arg(params, const char *);
if (current_form->value) {
if (current_form->flags & HTTPPOST_FILENAME) {
if (filename) {
if (!(current_form = AddFormInfo(strdup(filename),
NULL, current_form)))
return_value = FORMADD_MEMORY;
}
else
return_value = FORMADD_NULL;
}
else
return_value = 2;
return_value = FORMADD_OPTION_TWICE;
}
else {
if (filename)
current_form_info->value = strdup(filename);
else
return_value = 3;
current_form_info->flags |= HTTPPOST_FILENAME;
if (filename)
current_form->value = strdup(filename);
else
return_value = FORMADD_NULL;
current_form->flags |= HTTPPOST_FILENAME;
}
break;
}
case CURLFORM_CONTENTTYPE: {
char *contenttype = va_arg(params, char *);
if (current_form_info->contenttype) {
if (current_form_info->flags & HTTPPOST_FILENAME) {
case CURLFORM_CONTENTTYPE:
{
const char *contenttype = NULL;
if (array_state)
contenttype = forms[array_index].value;
else
contenttype = va_arg(params, const char *);
if (current_form->contenttype) {
if (current_form->flags & HTTPPOST_FILENAME) {
if (contenttype) {
if (!(current_form_info = AddFormInfo (NULL,
strdup(contenttype),
current_form_info)))
return_value = 4;
if (!(current_form = AddFormInfo(NULL,
strdup(contenttype),
current_form)))
return_value = FORMADD_MEMORY;
}
else
return_value = 3;
return_value = FORMADD_NULL;
}
else
return_value = 2;
return_value = FORMADD_OPTION_TWICE;
}
else {
if (contenttype)
current_form_info->contenttype = strdup(contenttype);
current_form->contenttype = strdup(contenttype);
else
return_value = 3;
return_value = FORMADD_NULL;
}
break;
}
default:
fprintf (stderr, "got unknown CURLFORM_OPTION: %d\n", next_option);
return_value = 5;
};
};
/* go through the list, check for copleteness and if everything is
* alright add the HttpPost item otherwise set return_value accordingly */
form_info = first_form_info;
while (form_info != NULL)
{
if ( (!first_form_info->name) ||
(!form_info->value) ||
( (!form_info->namelength) &&
(form_info->flags & HTTPPOST_PTRNAME) ) ||
( (form_info->contentslength) &&
(form_info->flags & HTTPPOST_FILENAME) ) ||
( (form_info->flags & HTTPPOST_FILENAME) &&
(form_info->flags & HTTPPOST_PTRCONTENTS) )
) {
return_value = 6;
break;
default:
fprintf (stderr, "got unknown CURLFORM_OPTION: %d\n", option);
return_value = FORMADD_UNKNOWN_OPTION;
}
else {
if ( (form_info->flags & HTTPPOST_FILENAME) &&
(!form_info->contenttype) ) {
/* our contenttype is missing */
form_info->contenttype
= strdup(ContentTypeForFilename(form_info->value, prevtype));
}
if ( !(form_info->flags & HTTPPOST_PTRNAME) &&
(form_info == first_form_info) ) {
/* copy name (without strdup; possibly contains null characters) */
if (AllocAndCopy(&form_info->name, form_info->namelength)) {
return_value = 8;
break;
}
}
if ( !(form_info->flags & HTTPPOST_FILENAME) &&
!(form_info->flags & HTTPPOST_PTRCONTENTS) ) {
/* copy value (without strdup; possibly contains null characters) */
if (AllocAndCopy(&form_info->value, form_info->contentslength)) {
return_value = 8;
break;
}
}
if ( (post = AddHttpPost (form_info->name, form_info->namelength,
form_info->value, form_info->contentslength,
form_info->contenttype, form_info->flags,
post, httppost,
last_post)) == NULL) {
return_value = 7;
}
if (form_info->contenttype)
prevtype = form_info->contenttype;
}
form_info = form_info->more;
};
}
/* and finally delete the allocated memory */
form_info = first_form_info;
while (form_info != NULL) {
FormInfo *delete_form_info;
if(FORMADD_OK == return_value) {
/* go through the list, check for copleteness and if everything is
* alright add the HttpPost item otherwise set return_value accordingly */
form = first_form;
while (form != NULL) {
if ( (!form->name) ||
(!form->value) ||
( (form->contentslength) &&
(form->flags & HTTPPOST_FILENAME) ) ||
( (form->flags & HTTPPOST_FILENAME) &&
(form->flags & HTTPPOST_PTRCONTENTS) ) ||
( (form->flags & HTTPPOST_READFILE) &&
(form->flags & HTTPPOST_PTRCONTENTS) )
) {
return_value = FORMADD_INCOMPLETE;
break;
}
else {
if ( (form->flags & HTTPPOST_FILENAME) &&
!form->contenttype ) {
/* our contenttype is missing */
form->contenttype
= strdup(ContentTypeForFilename(form->value, prevtype));
}
if ( !(form->flags & HTTPPOST_PTRNAME) &&
(form == first_form) ) {
/* copy name (without strdup; possibly contains null characters) */
if (AllocAndCopy(&form->name, form->namelength)) {
return_value = FORMADD_MEMORY;
break;
}
}
if ( !(form->flags & HTTPPOST_FILENAME) &&
!(form->flags & HTTPPOST_READFILE) &&
!(form->flags & HTTPPOST_PTRCONTENTS) ) {
/* copy value (without strdup; possibly contains null characters) */
if (AllocAndCopy(&form->value, form->contentslength)) {
return_value = FORMADD_MEMORY;
break;
}
}
if ( (post = AddHttpPost(form->name, form->namelength,
form->value, form->contentslength,
form->contenttype, form->flags,
post, httppost,
last_post)) == NULL) {
return_value = FORMADD_MEMORY;
}
if (form->contenttype)
prevtype = form->contenttype;
}
form = form->more;
}
}
/* always delete the allocated memory before returning */
form = first_form;
while (form != NULL) {
FormInfo *delete_form;
delete_form_info = form_info;
form_info = form_info->more;
free (delete_form_info);
};
delete_form = form;
form = form->more;
free (delete_form);
}
return return_value;
}
@ -1169,6 +1286,8 @@ int main()
char name7[] = "FILE1_+_CONTENTTYPE";
char name8[] = "FILE1_+_FILE2";
char name9[] = "FILE1_+_FILE2_+_FILE3";
char name10[] = "ARRAY: FILE1_+_FILE2_+_FILE3";
char name11[] = "FILECONTENT";
char value1[] = "value for simple COPYCONTENTS";
char value2[] = "value for COPYCONTENTS + CONTENTTYPE";
char value3[] = "value for PTRNAME + NAMELENGTH + COPYNAME + CONTENTSLENGTH";
@ -1190,6 +1309,7 @@ int main()
char buffer[4096];
struct HttpPost *httppost=NULL;
struct HttpPost *last_post=NULL;
struct curl_forms forms[4];
struct FormData *form;
struct Form formread;
@ -1244,6 +1364,21 @@ int main()
CURLFORM_COPYNAME, name9, CURLFORM_FILE, value7,
CURLFORM_FILE, value8, CURLFORM_FILE, value7, CURLFORM_END))
++errors;
forms[0].option = CURLFORM_FILE;
forms[0].value = value7;
forms[1].option = CURLFORM_FILE;
forms[1].value = value8;
forms[2].option = CURLFORM_FILE;
forms[2].value = value7;
forms[3].option = CURLFORM_END;
if (FormAddTest("FILE1 + FILE2 + FILE3 ARRAY test", &httppost, &last_post,
CURLFORM_COPYNAME, name10, CURLFORM_ARRAY, forms,
CURLFORM_END))
++errors;
if (FormAddTest("FILECONTENT test", &httppost, &last_post,
CURLFORM_COPYNAME, name11, CURLFORM_FILECONTENT, value7,
CURLFORM_END))
++errors;
form=Curl_getFormData(httppost, &size);